Hi Ben, [FYI, it's a private test report for your RFC patch.] [auto build test ERROR on pm/linux-next] [also build test ERROR on linus/master linux/master v5.10-rc3 next-20201113] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch] url: https://github.com/0day-ci/linux/commits/Ben-Widawsky/CXL-2-0-Support/202... base: https://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git linux-next config: i386-allyesconfig (attached as .config) compiler: gcc-9 (Debian 9.3.0-15) 9.3.0 reproduce (this is a W=1 build): # https://github.com/0day-ci/linux/commit/03316f5eab47413b046c08f6b977867df... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Ben-Widawsky/CXL-2-0-Support/20201111-134547 git checkout 03316f5eab47413b046c08f6b977867dfade36f9 # save the attached .config to linux build tree make W=1 ARCH=i386 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): In file included from drivers/cxl/mem.c:8: drivers/cxl/cxl.h: In function 'cxl_write_status_reg64': 58 | writeq(value, reg_addr + reg); \ | ^~~~~~ drivers/cxl/cxl.h:73:1: note: in expansion of macro 'cxl_reg' 73 | cxl_reg(status) | ^~~~~~~ drivers/cxl/cxl.h: In function 'cxl_read_status_reg64': 70 | return readq(reg_addr + reg); \ | ^~~~~ drivers/cxl/cxl.h:73:1: note: in expansion of macro 'cxl_reg' 73 | cxl_reg(status) | ^~~~~~~ cc1: some warnings being treated as errors vim +58 drivers/cxl/cxl.h 46 47 #define cxl_reg(type) \ 48 static inline void cxl_write_##type##_reg32(struct cxl_mem *cxlm, \ 49 u32 reg, u32 value) \ 50 { \ 51 void __iomem *reg_addr = READ_ONCE(cxlm->type.regs); \ 52 writel(value, reg_addr + reg); \ 53 } \ 54 static inline void cxl_write_##type##_reg64(struct cxl_mem *cxlm, \ 55 u32 reg, u64 value) \ 56 { \ 57 void __iomem *reg_addr = READ_ONCE(cxlm->type.regs); \ 59 } \ 60 static inline u32 cxl_read_##type##_reg32(struct cxl_mem *cxlm, \ 61 u32 reg) \ 62 { \ 63 void __iomem *reg_addr = READ_ONCE(cxlm->type.regs); \ 64 return readl(reg_addr + reg); \ 65 } \ 66 static inline u64 cxl_read_##type##_reg64(struct cxl_mem *cxlm, \ 67 u32 reg) \ 68 { \ 69 void __iomem *reg_addr = READ_ONCE(cxlm->type.regs); \ 71 } 72 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org